<template>
  <el-container class="fm2-container">
    <el-main class="fm2-main">
      <el-container>
        <el-aside
          width="250px"
          class="aside_color"
        >
          <div class="components-list">
            <template v-if="basicFields.length">
              <div class="widget-cate">
                {{ $t("fm.components.basic.title") }}
              </div>
              <draggable
                tag="ul"
                :list="basicComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost'
                }"
                :move="handleMove"
                @end="handleMoveEnd"
                @start="handleMoveStart"
              >
                <li
                  v-for="(item, index) in getBasicComponents"
                  :key="index"
                  class="form-edit-widget-label"
                  :class="{ 'no-put': item.type == 'divider' }"
                >
                  <a>
                    <i
                      class="icon iconfont"
                      :class="item.icon"
                    />
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>

            <template v-if="advanceFields.length">
              <div class="widget-cate">
                {{ $t("fm.components.advance.title") }}
              </div>
              <draggable
                tag="ul"
                :list="advanceComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost'
                }"
                :move="handleMove"
                @end="handleMoveEnd"
                @start="handleMoveStart"
              >
                <li
                  v-for="(item, index) in advanceComponents"
                  v-if="advanceFields.indexOf(item.type) >= 0"
                  :key="index"
                  class="form-edit-widget-label"
                  :class="{ 'no-put': item.type == 'table' }"
                >
                  <a>
                    <i
                      class="icon iconfont"
                      :class="item.icon"
                    />
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>

            <template v-if="layoutFields.length">
              <div class="widget-cate">
                {{ $t("fm.components.layout.title") }}
              </div>
              <draggable
                tag="ul"
                :list="layoutComponents"
                v-bind="{
                  group: { name: 'people', pull: 'clone', put: false },
                  sort: false,
                  ghostClass: 'ghost'
                }"
                :move="handleMove"
                @end="handleMoveEnd"
                @start="handleMoveStart"
              >
                <li
                  v-for="(item, index) in layoutComponents"
                  v-if="layoutFields.indexOf(item.type) >= 0"
                  :key="index"
                  class="form-edit-widget-label no-put"
                >
                  <a>
                    <i
                      class="icon iconfont"
                      :class="item.icon"
                    />
                    <span>{{ item.name }}</span>
                  </a>
                </li>
              </draggable>
            </template>
          </div>
        </el-aside>
        <el-container
          class="center-container"
          direction="vertical"
        >
          <el-header
            class="btn-bar"
            style="height: 45px;"
          >
            <slot name="action" />
            <el-button
              v-if="upload"
              type="text"
              size="medium"
              icon="el-icon-upload2"
              @click="handleUpload"
            >
              {{ $t("fm.actions.import") }}
            </el-button>
            <el-button
              v-if="clearable"
              type="text"
              size="medium"
              icon="el-icon-delete"
              @click="handleClear"
            >
              {{ $t("fm.actions.clear") }}
            </el-button>
            <el-button
              v-if="preview"
              type="text"
              size="medium"
              icon="el-icon-view"
              @click="handlePreview"
            >
              {{ $t("fm.actions.preview") }}
            </el-button>
            <el-button
              v-if="generateJson"
              type="text"
              size="medium"
              icon="el-icon-tickets"
              @click="handleGenerateJson"
            >
              {{ $t("fm.actions.json") }}
            </el-button>
            <el-button
              v-if="generateCode"
              type="text"
              size="medium"
              icon="el-icon-document"
              @click="handleGenerateCode"
            >
              {{ $t("fm.actions.code") }}
            </el-button>
          </el-header>
          <el-main :class="{ 'widget-empty': widgetForm.list.length == 0 }">
            <widget-form
              v-if="!resetJson"
              ref="widgetForm"
              :data="widgetForm"
              :select.sync="widgetFormSelect"
            />
          </el-main>
        </el-container>

        <el-aside
          class="widget-config-container aside_color"
          width="305px"
        >
          <el-container>
            <el-header height="45px">
              <div
                class="config-tab"
                :class="{ active: configTab == 'widget' }"
                @click="handleConfigSelect('widget')"
              >
                {{ $t("fm.config.widget.title") }}
              </div>
              <div
                class="config-tab"
                :class="{ active: configTab == 'form' }"
                @click="handleConfigSelect('form')"
              >
                {{ $t("fm.config.form.title") }}
              </div>
            </el-header>
            <el-main class="config-content">
              <widget-config
                v-show="configTab == 'widget'"
                :data="widgetFormSelect"
              />
              <form-config
                v-show="configTab == 'form'"
                :data="widgetForm.config"
              />
            </el-main>
          </el-container>
        </el-aside>

        <cus-dialog
          ref="widgetPreview"
          :visible="previewVisible"
          width="1000px"
          form
          @on-close="previewVisible = false"
        >
          <generate-form
            v-if="previewVisible"
            ref="generateForm"
            insite="true"
            :data="widgetForm"
            :value="widgetModels"
            :remote="remoteFuncs"
            @on-change="handleDataChange"
          >
            <template v-slot:blank="scope">
              Width
              <el-input
                v-model="scope.model.blank.width"
                style="width: 100px"
              />
              Height
              <el-input
                v-model="scope.model.blank.height"
                style="width: 100px"
              />
            </template>
          </generate-form>

          <template slot="action">
            <el-button
              type="primary"
              @click="handleTest"
            >
              {{
                $t("fm.actions.getData")
              }}
            </el-button>
            <el-button @click="handleReset">
              {{
                $t("fm.actions.reset")
              }}
            </el-button>
          </template>
        </cus-dialog>

        <cus-dialog
          ref="uploadJson"
          :visible="uploadVisible"
          width="800px"
          form
          @on-close="uploadVisible = false"
          @on-submit="handleUploadJson"
        >
          <el-alert
            type="info"
            :title="$t('fm.description.uploadJsonInfo')"
          />
          <div
            id="uploadeditor"
            style="height: 400px;width: 100%;"
          >
            {{ jsonEg }}
          </div>
        </cus-dialog>

        <cus-dialog
          ref="jsonPreview"
          :visible="jsonVisible"
          width="800px"
          form
          @on-close="jsonVisible = false"
        >
          <div
            id="jsoneditor"
            style="height: 400px;width: 100%;"
          >
            {{ jsonTemplate }}
          </div>

          <template slot="action">
            <el-button
              type="primary"
              class="json-btn"
              :data-clipboard-text="jsonCopyValue"
            >
              {{ $t("fm.actions.copyData") }}
            </el-button>
          </template>
        </cus-dialog>

        <cus-dialog
          ref="codePreview"
          :visible="codeVisible"
          width="800px"
          form
          :action="false"
          @on-close="codeVisible = false"
        >
          <!-- <div id="codeeditor" style="height: 500px; width: 100%;">{{htmlTemplate}}</div> -->
          <el-tabs
            v-model="codeActiveName"
            type="border-card"
            style="box-shadow: none;"
          >
            <el-tab-pane
              label="Vue Component"
              name="vue"
            >
              <div
                id="vuecodeeditor"
                style="height: 500px; width: 100%;"
              >
                {{ vueTemplate }}
              </div>
            </el-tab-pane>
            <el-tab-pane
              label="HTML"
              name="html"
            >
              <div
                id="codeeditor"
                style="height: 500px; width: 100%;"
              >
                {{ htmlTemplate }}
              </div>
            </el-tab-pane>
          </el-tabs>
        </cus-dialog>
      </el-container>
    </el-main>
  </el-container>
</template>

<script>
import Draggable from 'vuedraggable'
import WidgetConfig from './WidgetConfig'
import FormConfig from './FormConfig'
import WidgetForm from './WidgetForm'
import CusDialog from './CusDialog'
import GenerateForm from './GenerateForm'
import Clipboard from 'clipboard'
import {
  basicComponents,
  layoutComponents,
  advanceComponents
} from './componentsConfig.js'
import request from '@/utils/request'
import * as COM from '@/api/common.js'
import generateCode from './generateCode.js'
import ace from 'ace-builds'
export default {
  name: 'FmMakingForm',
  components: {
    Draggable,
    WidgetConfig,
    FormConfig,
    WidgetForm,
    CusDialog,
    GenerateForm
  },
  props: {
    preview: {
      type: Boolean,
      default: false
    },
    generateCode: {
      type: Boolean,
      default: false
    },
    generateJson: {
      type: Boolean,
      default: false
    },
    upload: {
      type: Boolean,
      default: false
    },
    clearable: {
      type: Boolean,
      default: false
    },
    basicFields: {
      type: Array,
      default: () => [
        'input',
        'textarea',
        'number',
        'radio',
        'checkbox',
        'time',
        'date',
        'rate',
        'color',
        'select',
        'switch',
        'slider'
      ]
    },
    advanceFields: {
      type: Array,
      default: () => ['blank', 'imgupload', 'editor', 'fileupload']
    },
    layoutFields: {
      type: Array,
      default: () => ['grid']
    }
  },
  data() {
    return {
      basicComponents,
      layoutComponents,
      advanceComponents,
      resetJson: false,
      widgetForm: {
        list: [],
        config: {
          labelWidth: 120,
          labelPosition: 'right',
          tableName: '',
          size: 'mini'
        }
      },
      configTab: 'widget',
      widgetFormSelect: null,
      previewVisible: false,
      jsonVisible: false,
      codeVisible: false,
      uploadVisible: false,
      remoteFuncs: {
        getUser() {
          return new Promise(function(reslove,reject){
            COM.jsonsqlForSelect({
              'sys_user:data[]': {
                '@column': 'user_id,account:value,name:label',
                '@where': {
                  'status@eq':'ENABLE'
                },
                '@join':[
                  {
                    'sys_dept@leftOutJoin':{
                      '@column': 'simple_name',
                      '@on': {
                        'dept_id':'data/dept_id'
                      }
                    }
                  }
                ]
              }
            }).then(res => {
              res.data.forEach(item => {
                item.label = `${item.value}-${item.label}-${item.simple_name}`
              })
              reslove(res.data)
            })
          })
        }
      },
      widgetModels: {},
      blank: '',
      htmlTemplate: '',
      vueTemplate: '',
      jsonTemplate: '',
      uploadEditor: null,
      jsonCopyValue: '',
      jsonClipboard: null,
      jsonEg: `{
        "list": [],
        "config": {
          "labelWidth": 120,
          "labelPosition": "top",
          "size": "mini"
        }
      }`,
      codeActiveName: 'vue'
    }
  },
  computed: {
    getBasicComponents() {
      return this.basicComponents.filter(item => this.basicFields.indexOf(item.type) >= 0)
    }
  },
  watch: {
    widgetForm: {
      deep: true,
      handler: function(val) {
        console.log(this.$refs.widgetForm)
      }
    },
    $lang: function(val) {
      this._loadComponents()
    }
  },
  mounted() {
    this._loadComponents()
  },
  methods: {
    _loadComponents() {
      this.basicComponents = this.basicComponents.map(item => {
        return {
          ...item,
          name: this.$t(`fm.components.fields.${item.type}`)
        }
      })
      this.advanceComponents = this.advanceComponents.map(item => {
        return {
          ...item,
          name: this.$t(`fm.components.fields.${item.type}`)
        }
      })
      this.layoutComponents = this.layoutComponents.map(item => {
        return {
          ...item,
          name: this.$t(`fm.components.fields.${item.type}`)
        }
      })
    },
    handleGoGithub() {
      window.location.href = 'https://github.com/GavinZhuLei/vue-form-making'
    },
    handleConfigSelect(value) {
      this.configTab = value
    },
    handleMoveEnd(evt) {
      console.log('end', evt)
    },
    handleMoveStart({ oldIndex }) {
      console.log('start', oldIndex, this.basicComponents)
    },
    handleMove() {
      return true
    },
    handlePreview() {
      console.log('handlePreview:', this.widgetForm)
      this.previewVisible = true
    },
    handleTest() {
      this.$refs.generateForm
        .getData()
        .then(data => {
          this.$alert(data, '').catch(e => {})
          this.$refs.widgetPreview.end()
        })
        .catch(e => {
          this.$refs.widgetPreview.end()
        })
    },
    handleReset() {
      this.$refs.generateForm.reset()
    },
    handleGenerateJson() {
      this.jsonVisible = true
      this.jsonTemplate = this.widgetForm
      console.log('handleGenerateJson:', JSON.stringify(this.widgetForm))
      this.$nextTick(() => {
        const editor = ace.edit('jsoneditor')
        editor.session.setMode('ace/mode/json')

        if (!this.jsonClipboard) {
          this.jsonClipboard = new Clipboard('.json-btn')
          this.jsonClipboard.on('success', () => {
            this.$message.success(this.$t('fm.message.copySuccess'))
            this.jsonVisible = false
            this.jsonClipboard.destroy()
          })
        }
        this.jsonCopyValue = JSON.stringify(this.widgetForm)
      })
    },
    handleGenerateCode() {
      this.codeVisible = true
      this.htmlTemplate = generateCode(JSON.stringify(this.widgetForm), 'html')
      this.vueTemplate = generateCode(JSON.stringify(this.widgetForm), 'vue')
      this.$nextTick(() => {
        const editor = ace.edit('codeeditor')
        editor.session.setMode('ace/mode/html')

        const vueeditor = ace.edit('vuecodeeditor')
        vueeditor.session.setMode('ace/mode/html')
      })
    },
    handleUpload() {
      this.uploadVisible = true
      this.$nextTick(() => {
        this.uploadEditor = ace.edit('uploadeditor')
        this.uploadEditor.session.setMode('ace/mode/json')
      })
    },
    handleUploadJson() {
      try {
        this.setJSON(JSON.parse(this.uploadEditor.getValue()))
        this.uploadVisible = false
      } catch (e) {
        this.$message.error(e.message)
        this.$refs.uploadJson.end()
      }
    },
    handleClear() {
      this.widgetForm = {
        list: [],
        config: {
          labelWidth: 100,
          labelPosition: 'right',
          size: 'small',
          customClass: ''
        }
      }

      this.widgetFormSelect = {}
    },
    getJSON() {
      return this.widgetForm
    },
    getHtml() {
      return generateCode(JSON.stringify(this.widgetForm))
    },
    setJSON(json) {
      this.widgetForm = json

      if (json.list.length > 0) {
        this.widgetFormSelect = json.list[0]
      }
    },
    handleInput(val) {
      console.log(val)
      this.blank = val
    },
    handleDataChange(field, value, data) {
      console.log(field, value, data)
    }
  }
}
</script>

<style lang="scss" scoped>
.widget-empty {
  background-position: 50%;
}
.el-aside {
  padding: 0px;
}
.aside_color{
  background-color:#fff !important;
}
</style>
